USB webcam interfacing problem with intel galileo

hi all

     I am working with Intel galileo board. I want to interface USB webcam with it. but while executing my code it shows me an error as shown below

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root@clanton:/home/kishan# ls

image

root@clanton:/home/kishan# ./image

VIDIOC_QUERYMENU: Invalid argument

VIDIOC_QUERYMENU: Invalid argument

VIDIOC_QUERYMENU: Invalid argument

VIDIOC_QUERYMENU: Invalid argument

VIDIOC_QUERYMENU: Invalid argument

VIDIOC_QUERYMENU: Invalid argument

VIDIOC_QUERYMENU: Invalid argument

(Video:1453): Gtk-WARNING **: cannot open display:

root@clanton:/home/kishan#

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Can any one tell me solution for this.

I am just trying to capture an image from web cam and try to save it.

Thanx in advance